We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 1980

5.2.x PPR - Relaxing PPR timespecs in xactinit.dat


If even a few nets do not meet timespec, PPR under default settings will relax timespecs on all nets to a maximum value.
This can be avoided by making the following additions to the xactinit.dat file.


Minimal additions:
placer_4k_pa_goal_ratio = 1.0
pa_init_goal = 1.00

Other common additions to xactinit.dat:

placer_4k_pa_goal_ratio = 1.0
pa_init_goal = 1.00
loop_report_max = L
/ppr/report_paths = true
pa_pins_to_show = 6
pa_paths_to_show = 5
/ppr/placer_effort = 4
/ppr/router_effort = 4
/ppr/path_timing = true
/ppr/timing = forced_on
/*/*/plog_file_level = verbose
/*/plog_file_level = verbose
/*/*/plog_stdout_level = verbose
/*/plog_stdout_level = verbose
AR# 1980
日期 03/22/2000
状态 Archive
Type ??????